I can not find any research on this, so I am throwing up a poll on PR to explore any association, negative or positive, of cigarette tobacco smoking to ME/CFS. I hope to keep the responses limited to cigarettes only, since filtration materials and commercial herbicides, pesticides, or preservatives may be looked at later depending on what this poll reveals. In order to use the wealth of existing epidemiological data and employ the stochastic process, lets please use "ever having smoked on a daily basis" for one month or more as a qualifier for being a past smoker. Same for non-smokers who have merely experimented with cigarette use; please respond as "never smoked". Many thanks for taking a few moments to do this poll.